13384947 has 4 divisors (see below), whose sum is σ = 17846600. Its totient is φ = 8923296.

The previous prime is 13384937. The next prime is 13384993. The reversal of 13384947 is 74948331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13384947 - 2²⁰ = 12336371 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13384907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2230822 + ... + 2230827.

It is an arithmetic number, because the mean of its divisors is an integer number (4461650).

Almost surely, 2^13384947 is an apocalyptic number.

13384947 is a deficient number, since it is larger than the sum of its proper divisors (4461653).

13384947 is an equidigital number, since it uses as much as digits as its factorization.

13384947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461652.

The product of its digits is 72576, while the sum is 39.

The square root of 13384947 is about 3658.5443826746. The cubic root of 13384947 is about 237.4318001777.

The spelling of 13384947 in words is "thirteen million, three hundred eighty-four thousand, nine hundred forty-seven".